EP 1380823 A3 20041222 - Drilling mechanics load cell sensor
Title (en)
Drilling mechanics load cell sensor
Title (de)
Lastzelle-Sensor für Bohranlage
Title (fr)
Capteur à cellule de charge pour mécanisme de forage
Publication
Application
Priority
US 6443802 A 20020712
Abstract (en)
[origin: EP1380823A2] A load cell for sensing deformation in a drill collar is provided. The load cell comprises a disc member having one or more arcuate apertures and a deformation sensing element disposed on a side surface of the arcuate apertures. The load cell is capable of sensing such drilling parameters as weight and torque on a drill bit during the drilling operation. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 47/00 (2006.01); G01G 19/18 (2006.01); G01L 1/22 (2006.01); G01L 5/16 (2006.01)
CPC (source: EP US)
E21B 47/007 (2020.05 - EP US); G01G 19/18 (2013.01 - EP US); G01L 1/2237 (2013.01 - EP US); G01L 5/1627 (2020.01 - EP US)
Citation (search report)
- [A] EP 0789234 A1 19970813 - KOMATSU MFG CO LTD [JP]
- [DA] US 5386724 A 19950207 - DAS PRALAY K [US], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1380823 A2 20040114; EP 1380823 A3 20041222; CA 2434489 A1 20040112; NO 20033188 D0 20030711; US 2004007357 A1 20040115; US 6684949 B1 20040203
DOCDB simple family (application)
EP 03254073 A 20030626; CA 2434489 A 20030707; NO 20033188 A 20030711; US 6443802 A 20020712